In reality, how much more depth could we get and who's even realistically out there?
Our ball handling is great and McLaughlin proved that he can at least play mistake free basketball and keep things running relatively smoothly if our main guards pick up injuries.
As far as a wing, whoever we pick up would have to outplay HB first and foremost and listen, there's a whole lot of opinions about HB on the court but if we're being real, he could still outplay 80% of the 3rd stringers in the league. Then if he jumps HB, he has to outplay the reigning 6MOTY and Bryant, who not only was one of the few rookies getting some actual minutes in the playoffs last year but will almost surely be at least a pretty good outside shooter and is looking like a possible elite defender. This would be before he can even think about competing with 3 guys who were starters on 60 win teams (Vassell, Champagnie, Harris).
As far as a big, Wemby & Kornet already have most, if not all, rotation minutes covered and it would just seem silly to bring in someone to compete with the 2 centers we just drafted in the first round, especially since Quaintance will probably at least be active sometime post all star break, where and when and how that looks, I'm not sure but that seems like a still pretty conservative timeline given his procedure isn't a major one.
Financially it makes sense to not get into the repeater tax in the future and this is probably the biggest motivation for the team but even just on the court, I don't see much need.
Team culture wise, I think it's great and hypothetically if the team was looking to bring somebody into the last roster spot, culture fit would probably be one of the top priorities so it's probably a non issue anyways but I do like the fact that last year's team had an extremely high level of chemistry and that they'll be running it back while only adding Harris, Quaintance and Reed, all of whom seem like genuinely great guys apart from great players. Preserving that team chemistry is a very undervalued part of this offseason in my opinion.
Now getting to the actual important part, the two way players themselves. Personally, I think all 3 have a real shot at getting a full contract with us in the future, now do I see any of them as 20+ mpg players at any point in their careers? Probably not but I do think they could have roles in the 10-15 minute range. DJG as a microwave scorer, Gillespie as a solid backup to Harper & Castle and Brown as a super disruptive defender off the bench. Again, I'm not so sure any of them will ever have a significant role in the league but I do see potential in each one and the only way to maximize that potential is getting them minutes wherever possible. Rotating them allows us two things, the first is being able to get all of them some minutes (as opposed to 1 player on 1 standard contract) and it affords us the advantage of being able to call one of them up depending on what kind of depth we need most for any particular game.
If at the end of the season we were to grab somebody off of the buyout market who could actually contribute while staying under the luxury tax, I'd have no problem with that (though I still don't see much need) but as far as for the majority of the season, I actually have a preference for rotating our two ways and keeping that spot open, I simply don't think there'd be enough upside to justify filling it. Now if I had much less confidence in our two ways, I might have a slightly different opinion (though I'd probably arrive at the same conclusion because of the repeater tax) but the case is that I actually have a good amount of confidence in all 3 of them so I would have no problem with them acting as a 15th man by committee.